Opinions on the Mugen MBX6 and motor options for it.

[ReV:-O]

might as well go with a castle-neu since they are the same as the original neu but cheaper. and might as well get a MMM also since ur gonna need an 8th scale ESC, and the only other real competitor is the tekin which is a lot more expensive.
alternatively you could go the cheap route and buy budget gear, but thats up to you.